<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			*{
				margin: 0;
				padding: 0;
			}
			div{
				min-width: 500px;
				height: 100px;
				background-color: green;
			}
			p{
				height: 50px;
				width: 100px;
				background-color: red;
			}
		</style>
	</head>
	<body>
		<div>
			<p>我是p元素</p>
		</div>
		
		
	</body>
</html>
